Internet advertising firms are losing hundreds of millions of
dollars following the introduction of a new privacy feature from
Apple that prevents users from being tracked around the web.

Advertising technology firm Criteo, one of the largest in the
industry, says that the Intelligent Tracking Prevention (ITP)
feature for Safari, which holds 15% of the global browser market,
is likely to cut its 2018 revenue by more than a fifth compared to
projections made before ITP was announced.

With annual revenue in 2016 topping $730m, the overall cost of the
privacy feature on just one company is likely to be in the
hundreds of millions of dollars.

If this is accurate, it goes to show the outsize influence Safari has. Criteo is claiming that a new feature in Safari, a browser with only 15 percent of global share, resulted in more than a 20 percent drop in their revenue. This, despite the fact that Intelligent Tracking Prevention — the feature in question — doesn’t block ads per se. It only prevents certain methods of privacy-invasive tracking. I fail to see how this is a bad thing.